Improvement in carpenters  flow



N. PETERS. PHoT0-LrrHoGRAPHER. WASH intimi tntt i ROYAL B. RICE, 0F `WILLIAMSBURG, MASSACHUSETTS.

Letters Patent No. 98,108, dated December 21, 1869.

IMPRO'IEMENT IN CARPENTERS PLOW.

The Schedule referred to in these Letters Patent and'makng part of the same.

Y I do hereby declare that the following is a full, clear,

and exact description of the construction and operation of the same, reference being-l1ad to the annexed drawings, making a part of this specification, in Which- Figure 1 is a side elevation ofa plane embodying my improvement..

Figure 2, a detached end elevation of the plate in which is arranged the coulter. l v

Figure 3, a side elevation of the coulter detached from the plate.,

Figure 4, 'a plan of the coulter inverted.

Figures 6 and 7, side and edge elevations of a tool for removing the coulter from -t-he plate.

In the accompanying drawings- The part marked a represents the wood or body.

b, the fence.

c, the plate.

d, the bit.

e, the key.

j, the screw-knob, by turning which the foot g is raised or depressed, and the depth of the furrow thereby regulated.

7.1. h are screws, provided with nuts 'i fi', also with corresponding mits on the opposite side of the wood a., whereby is regulated the distance of the fence b from the plate c.' f

My invention consists in so constructing and arranging a coulter, with reference to the bit or iron d, that in tongnmg or grooviug lumber, the edges of the shavings'to'be removed by the. bit d shallhave been previously out by the coulter k, greatly facilitating such operations.

.In practice, I make the Coulter k of a rectangular form, providing the same with depending cutting-lips m m', and with rebates n n. In the plate c, I'cut a notch, wherein I arrange the coulter, as in igs. 1 and 2. The conlter It is held in place simply by fitting the notch in plate c snugly.

The lips m m', being lower than the bit d, first cut the edges of the shavings, which are then removed by said hit. i 'y The essence of my invention is the combination of the lips m 'm' \\f'ith the-bit d.

By means of the tool represented in figs. 6 and 7, the vcoulter lo may be easily removed from plate c, and other coulters inserted to correspond with bits (d) of Thus having described the construction and operation of my invention,

What I claim as new, and desire to secure by Let ters Patent, is-

The coulter k, constructed and arranged with reference to bit d, as herein specified.

ROYAL B. RICE.

Witnesses:

T. M. CARTER, J. B. GLEAsoN.

di'erent widths that may be used inthe same wood a.. 

